Poaceae
Eriochrysis

Eriochrysis rangacharii C.E.C.Fisch.

First published in Bull. Misc. Inform. Kew 1932: 246 (1932)
This species is accepted
The native range of this species is India (Tamil Nadu: Paikara, Nilgiri). It is a perennial and grows primarily in the seasonally dry tropical biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Culms erect; 12-30 cm long; 3 -noded. Culm-internodes distally glabrous, or pubescent. Culm-nodes bearded. Leaf-sheaths tight; pilose. Ligule a ciliolate membrane; obtuse. Leaf-blades flat, or involute; 10-21 cm long; 2-5 mm wide; stiff. Leaf-blade surface hirsute; hairy on both sides.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Peduncle pilose above. Racemes 3-4; borne along a central axis; appressed; linear to oblong; 2-3 cm long. Central inflorescence axis 3-6 cm long. Rhachis fragile at the nodes; subterete; ciliate on margins. Rhachis hairs red. Rhachis internodes linear; 2.5 mm long. Rhachis internode tip clavate. Spikelets in pairs. Fertile spikelets sessile and pedicelled; 2 in the cluster; the upper smaller. Pedicels linear; ciliate.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 4-4.5 mm long, or 5.5-6.2 mm long; falling entire; deciduous from the base and with accessory branch structures. Spikelet callus bearded; base truncate. Spikelet callus hairs red; 2.2 mm long; 0.3-0.5 length of spikelet.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 4-4.5 mm long, or 5.5-6.2 mm long; falling entire; deciduous from the base and with accessory branch structures. Spikelet callus bearded; base truncate. Spikelet callus hairs red; 2.2 mm long; 0.3-0.5 length of spikelet.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume elliptic; 1 length of spikelet; chartaceous; without keels. Lower glume surface flat; pubescent. Lower glume margins ciliate. Lower glume hairs red. Upper glume elliptic; chartaceous; 1-keeled. Upper glume margins ciliate. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; without significant palea. Lemma of lower sterile floret oblong; 4-4.3 mm long; hyaline; ciliate on margins; obtuse, or acute. Fertile lemma linear, or lanceolate; 2-2.3 mm long; hyaline; without keel; 0 -veined. Lemma surface with conspicuous apical hairs. Lemma hairs 0.5-1 mm long. Palea absent or minute.
Morphology Reproductive morphology Flowers
Lodicules 2. Anthers 3; 2.7 mm long.
Distribution
Asia-tropical: India.
Reference
Andropogoneae. Fischer 1997.
[GB]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: confident
[AERP]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • GrassBase - The Online World Grass Flora

    • Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora.
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0